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- // Copyright 2021 Google LLC
- //
- // Licensed under the Apache License, Version 2.0 (the "License");
- // you may not use this file except in compliance with the License.
- // You may obtain a copy of the License at
- //
- // https://www.apache.org/licenses/LICENSE-2.0
- //
- // Unless required by applicable law or agreed to in writing, software
- // distributed under the License is distributed on an "AS IS" BASIS,
- // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- // See the License for the specific language governing permissions and
- // limitations under the License.
- //
- //
- // For full documentation, see
- // https://getreuer.info/posts/keyboards/caps-word
-
- #include "caps_word.h"
-
- bool process_caps_word(uint16_t keycode, keyrecord_t* record) {
- static bool caps_word_enabled = false;
- static bool shifted = false;
- #ifndef NO_ACTION_ONESHOT
- const uint8_t mods = get_mods() | get_oneshot_mods();
- #else
- const uint8_t mods = get_mods();
- #endif // NO_ACTION_ONESHOT
-
- if (!caps_word_enabled) {
- // Pressing both shift keys at the same time enables caps word.
- if ((mods & MOD_MASK_SHIFT) == MOD_MASK_SHIFT) {
- clear_mods();
- #ifndef NO_ACTION_ONESHOT
- clear_oneshot_mods();
- #endif // NO_ACTION_ONESHOT
- shifted = false;
- caps_word_enabled = true;
- return false;
- }
- return true;
- }
-
- if (!record->event.pressed) { return true; }
-
- if (!(mods & ~MOD_MASK_SHIFT)) {
- switch (keycode) {
- case QK_MOD_TAP ... QK_MOD_TAP_MAX:
- case QK_LAYER_TAP ... QK_LAYER_TAP_MAX:
- // Earlier return if this has not been considered tapped yet.
- if (record->tap.count == 0) { return true; }
- // Get the base tapping keycode of a mod- or layer-tap key.
- keycode &= 0xff;
- }
-
- switch (keycode) {
- // Letter keys should be shifted.
- case KC_A ... KC_Z:
- if (!shifted) { register_code(KC_LSFT); }
- shifted = true;
- return true;
-
- // Keycodes that continue caps word but shouldn't get shifted.
- case KC_1 ... KC_0:
- case KC_BSPC:
- case KC_MINS:
- case KC_UNDS:
- if (shifted) { unregister_code(KC_LSFT); }
- shifted = false;
- return true;
-
- // Any other keycode disables caps word.
- }
- }
-
- // Disable caps word.
- caps_word_enabled = false;
- if (shifted) { unregister_code(KC_LSFT); }
- shifted = false;
- return true;
- }
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